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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * A scheduled task for lti module.
  19   *
  20   * @package    mod_lti
  21   * @copyright  2019 Stephen Vickers
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  namespace mod_lti\task;
  25  
  26  use core\task\scheduled_task;
  27  
  28  defined('MOODLE_INTERNAL') || die();
  29  
  30  /**
  31   * Class containing the scheduled task for lti module.
  32   *
  33   * @package    mod_lti
  34   * @copyright  2018 Stephen Vickers
  35   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  36   */
  37  class clean_access_tokens extends scheduled_task {
  38  
  39      /**
  40       * Get a descriptive name for this task (shown to admins).
  41       *
  42       * @return string
  43       */
  44      public function get_name() {
  45          return get_string('cleanaccesstokens', 'mod_lti');
  46      }
  47  
  48      /**
  49       * Run lti cron.
  50       */
  51      public function execute() {
  52          global $DB;
  53  
  54          $DB->delete_records_select('lti_access_tokens', 'validuntil < ?', [time()]);
  55      }
  56  }